Lubricator.



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No. 890.787. PATEN'IED JUNE 16,- 1908.

E. MOGOY. I

LUBRIO'ATOR.

APPLIOATION FILED JULY 15. 1907.

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ELIJAH MCOOY, OF DETROIT', MICHIGAN.

LUBRICATOR'.

Specification of Letters Patent.

Patented June 16, 190&

Application led July 15, 1907. Serial No. 383,756.

To @ZZ whom it may concern:

Be it known that I, ELIJAH McCoY, a citizen of the United States of America, residing at Detroit, in the county of l/Vayne and State of Michigan, have invented certain new and useful Improvements in Lubricators, of Which the following is a specification, reference being had therein to the accompanying' drawings.

This invention relates to a sight-feed condensation displacement lubricator and the primary object of the invention is to maintain the lubricant in a workable or liquid condition and permit the use of the heaviest and thickest lubricants under all conditions of temperature.

In condensation displacement lubricators the temperature of the lubricant in the cup depends largely upon that of the Water in the cup and where the displacement is downward through the water in the cup it leaves the cup on its way to the sight feed at the temperature of the water. Where such lubricators have to be used in exposed position it often happens in cool weather that the lubricant becomes chilled and various expedients have to be used to make the lubricant pass through the nipple into the sight tube. To overcome this trouble luhricators have been devised in which the lubricant is heated by steam and displaced upwardly with the result that trouble often arises from the lubricant becoming' overheated and when this occurs there appears instead of a well defined drop a mass of blubber in the sight feed tube and this is usually the case with heavy lubricants.

My invention is designed to keep the lubricant warm Without taking any chances of overheating it and to this end I have designed a lubricator which embodies the underlying idea of heating the lubricant, i. e., the water of condensation in the cup by means of hot water and in carrying out this idea I make the condensing head of the sight feed the heating medium all as more fully hereinafter described and shown in the accompanying drawings, in which Figure l is a vertical central section through my improved lubricator, F ig. 2 is a horizontal section through the discharge arm, Fig. 3 is a detached vertical section through the valve in the condenser pipe taken in a plane at right angles to F ig. 1. Fig. 4 is a cross-section on line Fig. 1.

In the drawing 1 is the reservoir, 2 is the inlet arm adapted to connect the lubricator to the steam line for supplying the reservoir with water of condensation. 3 is the controlling valve in the inlet arm, 4 is the filler plug, 5 is a sight opening in the reservoir, 6 is thel discharge arm adapted to connect the lubricator to the steam line and 7 is the controlling valve in the discharge arm, all the parts being of usual construction and operation except as more fully hereinafter described and shown.

The dischar 'e arm is provided at its inlet end with an en argement forming a bulls-eye sight chamber 8 of the usual description and With an upward extension 9 projecting into the lower part of the reservoir. This 'eX- tension is screw-threaded at its base and is screwed into a screwthreaded aperture into the bottom of the reservoir. The sight chamber is provided with the usual drop feed nipple 10 and a passage 11 is formed in the enlargement around the sight chamber connecting the space below the nipple with the vertical feed pipe 12 which extends upwardly in the reservoir to near the top thereof adjacent to the extension 9. This extension is hollow, closed on top by a removable plug 2() and divided by a partition or dam 13 into a waterspace 14 and a steam space l5 which communicates With the steam passage 16 in the discharge arm, and forms the outlet for the lubricant.

The water space 14 communicates with the sight chamber and the extension 9 thus forms a condensing head for the sight chamber.

reservoir and sight chamber are provided and the inlet to the nipple 10 is controlled by a valve 19.

In. practice, the inlet and discharge arms beingvconnnected with the steam line and the reservoir being filled ,with the lubricant, it will be seen that the lubricant is conducted by downward displacement through the feed tube 12 into the passage 11 of the discharge arm and thence through the nipple 10 into the sight feed chamber which isv filled with Water of condensation fromv the steam admitted through the discharge arm. The drop formed at the nipple will thus rise up to the top of the condensing head and flow over` the wall or dam 13 into the steam space and down through it into the outlet end of the discharge arm.

The novel feature consists 1n connecting The usual drainage plugs 17 and 18 for the I -of connection therewith with a sight-feed chamberand with an extension into the bottom of the reservoir forming the condenser head of the sight feed chamber whereby the condenser head performs the function of a heater for the water of condensation and the lubricant respectively in the reservoir. As this condensing head is placed in the coldestJ part of the lubricator it parts with its heat very readily and keeps the lubricant in the reservoir and in the adjacent passage therefrom to the nipple in condition without subjecting it to any injurious degree of heat, since the steam space in the condensing` head is relatively small and remote from the passages l and l2 with the water space interposed between and on account of the proximity and intimate metallic connection between the reservoir and the discharge arm7 the heat derived from the steam in the discharge arm will be readily absorbed and equalized throughout the lubricator and its contents.

lhat I claim as my invention is:-

l. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm at the bottom of the reservoir and an extension thereon projecting upwardly through the bottom into the'sp ace within the reservoir7 and forming a condensing head adapted to be supplied with water of condensation from the steam admitted into the discharge arm.

2. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm at the bottom ofthe reservoir and an extension thereon projecting upwardly through the bottom into the space within the reservoir, said extension provided with a steam space in communication with the steam in the discharge arm and with a water space in communication with the steam space and adapted to be supplied with water of condensation therefrom.

In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm at the bottom of the reservoir and an extension thereon projecting upwardly through the bottom into the space within the reservoir, said eX- tension being hollow and divided by a verinto the space within the reservoir and provided with a water space adapted to be supplied with the water of condensation from the steam admitted into the discharge arm and a sight feed chamber in the discharge arm at the bottom of said water spaceland communicating with the lubricant in the reservoir.

5. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm provided with a condensing head projecting upwardly through the bottom of the reservoir into the space within the reservoir and adapted to be supplied with water of condensation from the steam in the discharge arm, a sight feed chamber in the discharge arm below said condensing head in communication with the lubricant in the reservoir and adapted to discharge the same through the condensing head into the discharge arm.

6. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm of a discharge arm connected to the bottom of the lubricator and extending laterally therefrom, an extension on said arm projecting upwardly through the bottom of the reservoir into the space within the same and provided with a water chamber and with a steam passage connecting the top of the water chamber with the steam space in the discharge arm for supplying it with water of condensation, a sight feed chamber in the discharge arm at the bottom of said water chamber and adapted to discharge the lubricant into said chamber, a downward displacement tube within the reservoir into the discharge arm and a passage in said discharge arm around the sight feed chamber connecting said tube with the sight feed nipple.

7. The combination with a reservoir and its inlet arm supplying the same with water of condensation for the displacement of the lubricant, of a sight feed chamber having its condensing head in heating contact with the water of displacement in the reservoir and a discharge arm for supplying the condensing head. with the water of condensation from the steam admitted into the discharge arm.

8. The combination with a reservoir and its inlet arm supplying the same with water of condensation for the displacement of the lubricant, of a sight feed chamber having its condensing head arranged in proximity to the reservoir and a discharge arm for supplying the same with the water of condensation from the steam admitted into the discharge arm.

9. The combination with a reservoir and its inlet arm supplying the same with water of condensation, of a sight feed having a discharge arm supplying the sight feed with water of condensation, the condensing head of the sight feed being located within the reservoir.

10. The combination with a reservoir and its inlet arm supplying the same with water of condensation for the displacement of the lubricant, of a sight feed having a discharge arm su plying the sight feed with the Water of condensation, the condensing head of the sight feed being located in heating contact with the water of displacement in the reser- Voir.

11. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm at the bottom of the reservoir and an extension thereon projecting into the space within the reservoir, and forming a condensing head adapted to be supplied with water of condensation from the steam admitted into the discharge arm.

12. In a condensation displacement lubricator, the combination with the reservoir and its inlet arm, of a discharge arm connected to the bottom of the lubricator and extending laterally therefrom, an extension on said arm provided with a water chamber and with a steam passage connecting the top of the Water chamber with the steam space in the discharge arm for supplying it with water of condensation, a sight feed chamber in the discharge arm at the bottom of said water chamber and adapted to discharge the lubricant into said chamber, a downward displacement tube into the discharge arm and a passage in said discharge arm around the sight feed chamber connecting said tube with the sight feed nipple.

In testimony whereof I affix my signature in presence of two witnesses.

ELIJAH MCCOY. l/Vitnesses:

C. R. STICKNEY, OTTO F. BARTHEL.

It is hereby certified that Letters Patent No. 890,787, granted June 16, 1908,

upon the application of Elijah McCoy, of Detroit, Michigan, for an improvement in Lubrioators, Were erroneously issued to said Elijah McCoy as sole owner of said invention; Whereas the said Letters Patent should have been issued to Penberthy Injector Company, of Detroit, Michigan, a comomtc'on of Michigan, as owner of the entire interest in said invention, as shown by the assignments of record in this oee; and

that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Oiee.

Signed and sealed this 7th day of July, A. D., 1908.

[SEAL] E. B. MOORE,

Commissioner of Patents.

It is hereby certified that Letters Patent No. 890,787, granted June 16, 1908,

upon the application of Elijah McCoy, of Detroit, Michigan, for an improvement in Lubrieators, were erroneously issued to said Elijah McCoy as sole owner of said invention; Whereas the said Letters Patent should have been issued to Penbcrthy Injector Company, of Detroit, Michigan, a corporation of Michigan, as owner 0f the entire interest in said invention, as shown by the assignments of record in this oee; and

that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Ofce.

Signed and sealed this 7th day of July, A.1 D., 1908..

[SEAL] E. B. MOORE,

Commissioner of Patents. 

